
| APR | MAY | JUN | JUL | AUG | SEP | ||||||||||||||||||||||
| Week no. | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | |
| Site | Ind | ||||||||||||||||||||||||||
| Small/Essex Skipper | NI | . | . | . | . | . | 8 | 44 | 51 | 70 | 17 | 2 | 1 | . | . | . | . | . | . | . | |||||||
| Large Skipper | 1 | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||||
| Large White | 35 | . | . | . | . | . | . | . | 1 | . | 7 | 9 | 9 | 1 | 1 | 3 | . | . | 2 | . | |||||||
| Small White | 194 | 5 | 11 | . | 2 | . | . | 20 | 17 | 12 | 10 | 7 | 12 | 13 | 9 | 5 | 18 | 5 | 4 | 4 | |||||||
| Green-veined White | 4 | 1 | . | . | . | . | . | . | . | . | . | . | . | 1 | . | 1 | . | . | . | . | |||||||
| Orange Tip | NI | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||||
| White-letter Hairstreak | 1 | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | |||||||
| Small Copper | 16 | . | . | . | . | . | . | . | . | . | . | . | . | 1 | 2 | 1 | . | 6 | 1 | 5 | |||||||
| Common Blue | 3 | . | . | . | 1 | . | . | . | . | . | . | . | . | 1 | . | . | . | 1 | . | . | |||||||
| Holly Blue | 13 | . | . | . | . | . | . | . | . | 4 | 5 | . | 4 | . | . | . | . | . | . | . | |||||||
| Red Admiral | 37 | . | . | . | 1 | 1 | 1 | 2 | 2 | 5 | 6 | 5 | 4 | . | 4 | 1 | 3 | . | . | . | |||||||
| Painted Lady | 4 | . | . | . | . | . | 1 | . | . | 1 | . | 1 | . | 1 | . | . | . | . | . | . | |||||||
| Small Tortoiseshell | 10 | . | 1 | . | . | 1 | . | 2 | 1 | . | . | . | . | 3 | . | 1 | . | . | . | . | |||||||
| Peacock | NI | 1 | 3 | . | 1 | . | . | . | . | . | . | 2 | 1 | . | . | . | . | . | . | . | |||||||
| Comma | 29 | . | 1 | . | . | 1 | 9 | 1 | 3 | 2 | 4 | 4 | 1 | 1 | 1 | . | 1 | . | . | . | |||||||
| Speckled Wood | 165 | 5 | 9 | 5 | 6 | 6 | 2 | 2 | 4 | 8 | 10 | 6 | 8 | 10 | 6 | 8 | 10 | 10 | 10 | 3 | |||||||
| Gatekeeper / Hedge Brown | 198 | . | . | . | . | . | . | . | 3 | 27 | 72 | 46 | 38 | 12 | . | . | . | . | . | . | |||||||
| Meadow Brown | 270 | . | . | . | . | . | 2 | 32 | 34 | 48 | 58 | 37 | 20 | 21 | 12 | 4 | . | . | . | . | |||||||